Clothing (Kitab Al-Libas)
Dawud :: Book 32 : Hadith 4100
Narrated Umm Salamah, Ummul Mu'minin:
I was with the Apostle of Allah (peace_be_upon_him) while Maymunah was with him. Then Ibn Umm Maktum came. This happened when we were ordered to observe veil (purdah). The Prophet (peace_be_upon_him) said: Observe veil from him. We asked: Apostle of Allah! is he not blind? He can neither see us nor recognise us. The Prophet (peace_be_upon_him) said: Are both of you blind? Do you not see him? AbuDawud said: This was peculiar to the wives of the Prophet (peace_be_upon_him). Do you not see that Fatimah daughter of Qays passed her waiting period with Ibn Umm Maktum. The Prophet (peace_be_upon_him) said to Fatimah daughter of Qays: Pass your waiting period with Ibn Umm Maktum, for he is a blind man. You can put off your clothes with him.